Automatic elevator-gate



(No Model.)

T. SUI-IOLEY.

AUTOMATIC ELEVATOR GATE.

No. 246,914. Patented Sept. 13,1881.

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'UNITED STATES PATENT QFFICE.

THOMAS SOHOLEY, OF PEORIA, ILLINOIS.

AUTOMATIC ELEVATOR-GATE.

SPECIFICATION forming part of Letters Patent No, 246,914, dated September 13, 1881.

Application filed June 27, 1881.

To all whom it may concern Be it known that I, THOMAS SoHoLEY, of Peoria, in the county of Peoria, in the State of Illinois, have invented an Improved Automatic Elevator-Gate; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the annexed drawings, making apart of this specification, in which like letters of reference refer to like parts, and in which- Figure 1 represents side elevation of elevator and gate; Fig. 2, sectional front elevation Fig. 3, sectional plan.

The object of this invention is the construction of a gate or door to close the elevatoropenings through a floor that shall be operated by the elevator itself.

I construct my elevator-gate in two sections, each of which slide from and toward the center of the elevator-opening. D and D are the two half-gates, having their two inside corners notched to make room for the bars B and the rollers R B.

This elevator is shown in the drawings as 2 5 just in front of a partition-wall of the building,

of which V is the floor through which the elevator is represented as passing.

F is the floor of this elevator; H H and K, the frame-work, and M M the grooved guidetimbers at the sides of the elevator-opening.

The half-gate D slides horizontally from and toward the center ofthe elevator-openin g either upon, under, or between the two surfaces of the floor. At each of the two inside corners of said half-gate D are attached the two small friction-rollers R and R.

Between the elevator-opening and the wall (shown in the drawings in Fig. 1) there is not room for the half-gate D, if put there, to be pushed back from over the said opening. A different construction of the gate at that side is therefore necessary. The half-gateD is split across through its center and the two parts hinged together; The outside edge is hinged to the floor V, near the edge of the elevatoropening, and the inside edge hinged to the strip S, to which the two pairs of rollers R and R are pivoted. The pivots that hold the rollers R R extend onto the slides II, that are free to move back and forth in the grooves J J. To move these two half-gates D and D away, to admit of the passage of the elevator and to are alternative constructions.

(No model).

bring said gates back over the opening when the elevator has passed, I attach to each-side of the elevator the frame B B O E. This frame consists of two fiat bars, B B, bent into the shape shown in Fig.1, and held together by the plates E E and cross-bars O O. The crossbar 0 is fastened to the floor F of the elevator, while the bar 0 is fastened at its center to the beam K of the elevator.

The bolts for fastening the plates E E and bars 0 O to the edge of the flat bar B have their heads made dovetail in shape, and in the edges of said bars B notches are cut to correspond to these bolt-heads. Said bolt-heads are then inserted into the said notches and their sides hammered until they are immovably held. The ends of the two bars B B are held apart a distance equal toabout the diameters of two rollers, It R. Rods a a, together with the tie rods 12 b b I), hold these two frames B B O E to each other more firmly. At each of the four ends of these two frames pieces of wood or metal are fastened to fit the grooves in the guide-timbers M M and keep said frame from getting out of line with said grooves. If the ends of said bars B were a little too far in front or behind, as they came to the gates, they might strike square on top of the rollers It R instead of between them, and so break them oif.

If the guide-timber M M is ton gued instead of grooved, the form of the guides U must be changed to correspond.

In case there were no partition-wall just beside the elevator it would be preferable to make the half-gate D like the other one, D. I do not wish to be understood as saying, however, that the two described half-gates D and D In most cases they would both be necessary to make one complete gate, and in no case could D be used for the front part of the elevator-opening.

The two half-gates D and D are held together by the spring-catch e and pin d.

The mode of operation of this elevator and gate is as follows, taking them as in Fig. land supposing them to be descending: While the vertical part of the bars B, from 4 to 1, is moving down between the rollers Rand R, the gatesD Dremain wide open. When,however, the bent part, from 1 to 2, comes to the rollers, they are drawn toward the center of the elevator till the short part, from 2 to 3, is reached.

The half-gates D D are here completely closed, and, as they are left by the ends of the bars B, the spring 6, which had previously been held back by the bar B, is now'let back to hook onto the pin d and keep the gate secure. It, now, the elevator ascends, the ends 3 3 of said bars B enter between the rollers It It, the ta per or slant at the ends aforesaid pushes aside the spring 0 from the pin d, and the gates are released. As the elevator continues to ascend the part of the bars B from 2 to 1 presses againstthe rollers Rand slowly pushes the halfgates apart. In D the central part, hinged together at L, rises up to permit the strip S to be pushed away from the center of the elevator.

What I claim as my invention, and for which I desire Letters Patent, is as follows, to wit:

An automatic elevatorgate consisting of the half-gate D, with two pairs of rollers, R R, and spring-catch e, and the half-gate D, split 20 and hinged together at h, the strip S, with slides I I and rollers R R, in combination with the bars B, bent as shown, and secured to an elevator.

In testimony that I claim the foregoing in- 25 vent-ion I have hereunto set my hand this 22d day of June, 1881.

THOMAS SGHOLEY.

Witnesses:

ENOGH P. SLOAN, M. E. UPHAM. 

